BURDEN, E. (1991). Photo Entourage: A Tracing File Sourcebook/ernest Burden. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)BURDEN, Ernest. Photo Entourage: A Tracing File Sourcebook/ernest Burden. McGraw-Hill, 1991.
Lua MLA (8ú heag.)BURDEN, Ernest. Photo Entourage: A Tracing File Sourcebook/ernest Burden. McGraw-Hill, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.